| require("import") -- the import fn |
| import("grouping") -- import lib into global |
| g=grouping --alias |
| |
| -- catching undefined variables |
| local env = _ENV -- Lua 5.2 |
| if not env then env = getfenv () end -- Lua 5.1 |
| setmetatable(env, {__index=function (t,i) error("undefined global variable `"..i.."'",2) end}) |
| |
| assert(g.test1(5) == 5) |
| g.test2(42) -- Return value is int* packed into userdata. We can't do anything with it |
| |
| assert(g.test3 == 37) |
| g.test3 = 42 |
| assert(g.test3 == 42) |
| |
| assert(g.NEGATE ~= nil) |
| assert(g.do_unary(5, g.NEGATE) == -5) |
